Quantum GAS-FIRED BOILERS Test High Limit Control and Adjust, Test Other Safety Controls

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F. TEST HIGH LIMIT CONTROL AND ADJUST

While burner is operating, move indicator on high limit control below actual boiler water temperature. Burner should go off while circulator continues to operate. Raise limit setting above boiler water temperature and burner should reignite after pre purge and igniter warm- up period. Set the high limit control to the design temperature requirements of the system. Maximum high limit setting is 200°F. Minimum high limit setting is 100°F.

G. TEST OTHER SAFETY CONTROLS

If the boiler is equipped with a low water cut off, a manual reset high limit, or additional safety controls, test for operation as outlined by the control manufacturer. Burner should be operat- ing and should go off when controls are tested. When safety controls are restored, burner should reignite.

H. SET THERMOSTAT HEAT ANTICIPATOR (IF USED) AND VERIFY THERMOSTAT OPERATION For a single thermostat connected to the yellow thermostat lead wires in the furnished field wiring junction box, the heat anticipator should be set at 0.7 amps. For other wiring configura- tions, refer to the instructions provided by the thermostat manufacturer regarding adjustment of heat anticipator. Cycle boiler with thermostat. Raise the thermostat to the highest setting and verify boiler goes through normal start up cycle. Lower thermostat to lowest setting and verify boiler goes off.

I. MEASURE THE NATURAL GAS INPUT RATE

Correct input rate is essential for proper and efficient operation of the burner and boiler.

1.Determine elevation at installation site.

2.See page 4 and 5 of this manual to determine the correct input rate for the local elevation.

3.Obtain the yearly average heating value of the local gas supply from the gas utility. At sea level elevation, it should be approximately 1000 Btu’s per standard cubic foot.

4.Operate boiler for 5 minutes.

5.Turn off all other gas appliances, extinguishing standing pilots where applicable.

6.At gas meter, measure time in seconds required to use one cubic foot of gas.

7.Calculate input rate according to the following formula:

3600xheating value from step 3

Btuh input rate = time from step 6

8.Measured input rate should be within +/-2% of the input rating from step 2. If within 2%, go to step 9. If not, adjustment is required, proceed as follows:

a.Turn boiler off

b.Set up U-tube manometer or differential pressure gauge for measuring manifold pres sure, see FIG. 17.

c.Manometer or gauge must be able to read at least 0.0 to 3.0 inches water column of pressure, and resolve to at least 0.1 inches water column.

d.Turn boiler on.

e.Manifold pressure has been nominally set at 2.5 inches w.c. Manifold pressure and input rate must always be measured with pressure regulator cover screw installed. Cover screw must be removed for adjustment. Manifold pressure reading will change (increase) when cover screw is removed.

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Contents Boilers Page Controls and Accessories Electrical WiringPlacing the Boiler Near Boiler Piping Combustion AIR and Vent PipeMaintenance and Cleaning CHECK-OUT Procedures and AdjustmentsService Hints Repair PartsIntroduction Boilers for USE AT High Altitude Boiler Ratings and Capacities$%/$02/1$785$/*$6+,*+$/7,785$7,1*6 $%/&02/1$785$/*$6+,*+$/7,785$7,1*6 Codes Rules for Safe Installation and OperationBefore Installing the Boiler Considerations for Boiler Location Boiler SizingCombustion AIR and Vent Pipe Requirements Locating the BoilerFoundation Requirements Removal of Existing Boiler from Common Vent System Placing the BoilerSupply and Return Lines Near Boiler PipingSingle Zone Boiler Piping Multi Zone Boiler Piping with Zone Valves Multi Zone Boiler Piping with Circulators Expansion Tank and MAKE-UP Water Single Zone Boiler Piping Pressure Relief ValveDiaphragm Type Expansion Tank Piping Conventional closed type Expansion Tank Piping Condensate Drain Piping Connections and Termination Combustion AIR and Vent PipeChilled Water Piping Page Roof VENT/INTAKE Terminations Sidewall VENT/INTAKE Terminations Combustion AIR and Vent Piping Check GAS Supply InstallationGAS Supply Piping Checking the GAS Piping Connecting the GAS PipingElectric Power Supply Electrical WiringDead Spots Cold Spots HOT Spots Install Your ThermostatField Wiring Connections Schematic Wiring Diagram Ladder Wiring Diagram Controls and Accessories Differential Pressure AIR Proving Switch Casting Temperature Safety SwitchDraft Inducer Circulator PumpStart UP Flame Rollout Safety ShutoffS.M.E. Rated Pressure Relief Valve Optional External Condensate PumpRepeat for all remaining zones To Turn OFF GAS to Appliance Operating InstructionsPage Inspect Venting and AIR Intake System Test Ignition System Safety Shutoff DeviceInspect Condensate Drain Inspect System PipingMeasure the Natural GAS Input Rate Test High Limit Control and AdjustTest Other Safety Controls Manifold Pressure Measurement Detail Review ALL Instructions SET Thermostat to Desired Room TemperatureInstallation and CHECK-OUT Certificate Daily During Heating Season Maintenance and CleaningBeginning of Each Heating Season Monthly During Heating Season Annual Examination and Cleaning of Boiler ComponentsPeriodically During Heating Season END of Each Heating Season Annual Shutdown ProcedurPage Page Service Hints Detailed Sequence of Operation Detailed Sequence of Operation END of Normal Sequence of Operation Initial Service Checks Trouble Shooting667067$786 Troubleshooting Chart Trouble Shooting Trouble Shooting Trouble Shooting Trouble Shooting Trouble Shooting Differential AIR Pressure Switch Check Repair Parts $&.7$1%$6$660% 70180%5 37,21 48$17,7 2116$75$,175$3$660% 70180%5 37,21 48$17,7 Condensate Drain Trap AssemblyBoiler Block and Piping Assembly 5%/2&.$13,3,1*$660% 70180%5 37,21 48$17,7 Mixer and AIR Pressure Switch Assembly $1$,53566856,7&+$660% 70180%5 37,21 48$17,7 Flue Adapter and Exhaust Assembly

GAS-FIRED BOILERS specifications

Quantum gas-fired boilers represent a significant advancement in the realm of residential and commercial heating solutions. These innovative systems efficiently utilize natural gas to deliver consistent heating, catering to a wide range of climates and applications. With rising energy costs and increasing environmental concerns, the adoption of gas-fired boilers has gained momentum, making them a popular choice for heating needs.

One of the main features of Quantum gas-fired boilers is their impressive energy efficiency. Modern gas boilers are designed to achieve high efficiencies, often ranging from 90% to 98%. This means that the majority of the energy consumed is converted into useful heat, significantly reducing fuel costs and environmental impact. Their ability to operate at such high efficiencies is largely due to advanced condensing technology, which captures and reuses the heat from exhaust gases, thus maximizing the energy extracted from the fuel.

Moreover, Quantum gas-fired boilers are equipped with advanced control systems that allow for precise temperature regulation. These systems can monitor changes in demand and adjust the operation of the boiler accordingly, ensuring that energy consumption is kept to a minimum without sacrificing comfort. This not only promotes energy savings but also extends the lifespan of the appliance.

In addition to efficiency and control, modular design is another important characteristic of Quantum gas-fired boilers. Many models are available in compact sizes, making them suitable for diverse installation environments, including tight spaces and urban areas. Their versatility allows for installation in various configurations, including wall-mounted and floor-standing units, which can be tailored to fit the specific requirements of a heating system.

Moreover, modern Quantum gas-fired boilers come with features that enhance user experience and maintenance. Many incorporate built-in diagnostic tools that indicate potential issues before they become significant problems, facilitating timely interventions and reducing downtime. Some models even offer connectivity features, enabling remote monitoring and control through smartphone applications.

In summary, Quantum gas-fired boilers deliver exceptional energy efficiency and reliability, employing advanced technologies such as condensing methods and smart controls. Their modular design and user-friendly features make them an appealing choice for anyone seeking a high-performing heating solution. As the demand for sustainable and cost-effective heating solutions continues to rise, Quantum gas-fired boilers are poised to play a crucial role in meeting the world's heating needs.
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